Diesel Data: Automotive Repair

Blower/Evaporator Unit Removal and Installation

Blower/Evaporator Unit Removal and Installation

1. Recover the refrigerant with a recovery/recycling/charging station.
2. Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons.
3. Remove the battery.




4. Pull out the grommets, then carefully separate the upper grommet (A) from the lower grommet (B) by releasing the lock tabs (C).




5. Remove the bolt, then disconnect the suction line (A) and the receiver line (B) from the blower/evaporator unit. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
6. Remove the passenger's dashboard lower cover and the right kick panel.
7. Disconnect the dashboard wire harness connector from the passenger's door wire harness connector, then remove it. Remove the wire harness connectors and the soft top control unit from the steering hanger beam.




8. Disconnect the connectors (A) from the blower motor, the power transistor, the evaporator sensor, and the recirculation control motor, then remove the wire harness clips (B). Remove the drain hose (C), the self-tapping screw, the mounting bolts, the mounting nuts, and the blower/evaporator unit (D).
9. Install the unit in the reverse order of removal, and note these items:
- If you're installing a new blower/evaporator unit, add refrigerant oil (KEIHIN SP-10).
- Replace the O-rings with new ones at each fining, and apply a thin coat of refrigerant oil before installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.
- Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption.
- Do not spill the refrigerant oil on the vehicle; it may damage the paint. If the refrigerant oil contacts the paint, wash it off immediately.
- Make sure that there is no air leakage.
- Charge the system.
- Do the ECM idle learn procedure.
- Enter the anti-theft code for the radio, then enter the audio presets.